Ionization Potentials of Hydrogen Fluoride and the Ground-State of the HF+ Ion

Nature ◽  
1957 ◽  
Vol 179 (4571) ◽  
pp. 1186-1186 ◽  
Author(s):  
J. W. C. JOHNS ◽  
R. F. BARROW
Keyword(s):  
Hydrogen Fluoride ◽  
Ground State ◽  
Ionization Potentials

scholarly journals Ionization Potentials of Hydrogen Fluoride and the Ground-State of the HF+ Ion

Nature ◽  
1957 ◽  
Vol 179 (4571) ◽  
pp. 1186-1186 ◽  
Author(s):  
J. A. R. COOPE ◽  
D. C. FROST ◽  
C. A. McDOWELL
Keyword(s):  
Hydrogen Fluoride ◽  
Ground State ◽  
Ionization Potentials

Ground-State Ionization Potentials for Ionized Atoms by the Thomas-Fermi Model

1973 ◽  
Vol 8 (5) ◽  
pp. 2249-2254 ◽  
Author(s):  
Leon A. Wittwer ◽  
Stewart D. Bloom
Keyword(s):  
Ground State ◽  
Ionization Potentials ◽  
Fermi Model ◽  
Thomas Fermi

Comments on the paper by A. D. Walsh

1951 ◽  
Vol 207 (1088) ◽  
pp. 31-32 ◽  
Keyword(s):  
Ionization Potential ◽  
Ground State ◽  
Valence State ◽  
Periodic Table ◽  
Direct Relationship ◽  
Ionization Potentials ◽  
Electron Affinities ◽  
Theoretical Justification ◽  
Left Hand ◽  
The Right

Theoretical justification for a relationship between ionization potential ( I ) and electronegativity ( x ) rests in the equation derived by Mulliken (1934, 1949), viz.: X = I + E / 2 where E is the electron affinity. Elements situate on the left-hand side of the Periodic Table have small E values, so that in these cases a direct relationship between x and I might be anticipated. On the right-hand side of the Periodic Table, the electron affinities may be appreciable, and for example in the halogens, are of the order 3 to 4 eV. The neglect of the term in E in these instances represents a serious departure from Mulliken’s equation. It is furthermore important to stress that the values of I which apply in the Mulliken equation are ‘valence-state’ ionization potentials, and are not in general to be identified with the first ionization potentials of the elements, which Walsh has employed. The relationships observed by Walsh might, in consequence, be misleading in cases where the ionization potential of the ground-state of an atom is far removed (in energy) from the ionization potential of the atom in its appropriate valence-state (e.g. Zn, Cd, Hg).

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